MARIA JOSE CARVALHO CARMONA
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Cirurgia, Faculdade de Medicina - Docente
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina - Médico
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/08 - Laboratório de Anestesiologia, Hospital das Clínicas, Faculdade de Medicina
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina - Médico
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/08 - Laboratório de Anestesiologia, Hospital das Clínicas, Faculdade de Medicina
7 resultados
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article 10 Citação(ões) na Scopus Use of a Minimally Invasive Uncalibrated Cardiac Output Monitor in Patients Undergoing Cesarean Section under Spinal Anesthesia: Report of Four Cases(2011) BLIACHERIENE, Fernando; CARMONA, Maria Jose Carvalho; BARRETTI, Cristina de Freitas Madeira; HADDAD, Cristiane Maria Federicci; MOUCHALWAT, Elaine Soubhi; BORTOLOTTO, Maria Rita de Figueiredo Lemos; FRANCISCO, Rossana Pulcineli Vieira; ZUGAIB, MarceloBliacheriene F, Carmona MJC, Barretti CFM, Haddad CMF, Mouchalwat ES, Bortlotto MRFL, Francisco RPV, Zugaib M - Use of a Minimally Invasive Uncalibrated Cardiac Output Monitor in Patients Undergoing Cesarean Section under Spinal Anesthesia: Report of Four Cases. Background and Objectives: Hemodynamic changes are observed during cesarean section under spinal anesthesia. Non-invasive blood pressure (BP) and heart rate (HR) measurements are performed to diagnose these changes, but they are delayed and inaccurate. Other monitors such as filling pressure and cardiac output (CO) catheters with external calibration are very invasive or inaccurate. The objective of the present study was to report the cardiac output measurements obtained with a minimally invasive uncalibrated monitor (LiDCO rapid) in patients undergoing cesarean section under spinal anesthesia. Case report: After approval by the Ethics Commission, four patients agreed to participate in this study. They underwent cesarean section under spinal anesthesia while at the same time being connected to the LiDCO rapid by a radial artery line. Cardiac output, HR, and BP were recorded at baseline, after spinal anesthesia, after fetal and placental extraction, and after the infusion of oxytocin and metaraminol. We observed a fall in BP with an increase of HR and CO after spinal anesthesia and oxytocin infusion; and an increase in BP with a fall in HR and CO after bolus of the vasopressor. Conclusions: Although this monitor had not been calibrated, it showed a tendency for consistent hemodynamic data in obstetric patients and it may be used as a therapeutic guide or experimental tool.article 1 Citação(ões) na Scopus Experimental Model of Non-Controlled Hemorrhagic Shock in Pigs(2011) CAVALCANTE, Fernanda Paula; NANI, Ricardo Souza; ROCHA FILHO, Joel Avancini; AULER JUNIOR, Jose Otavio Costa; CARMONA, Maria Jose Carvalho; MACHADO, Marcel Cerqueira CesarCavalcante FP, Nani RS, Rocha Filho JA, Auler Junior JOC, Carmona MJC, MachadoMCC - Experimental Model of Non-Controlled Hemorrhagic Shock in Pigs. Background and objectives: A better understanding of pathophysiologic changes associated to trauma and hemorrhagic shock can help the development of therapies capable of reducing trauma-related mortality. The objective of this study was to describe a model of non-controlled hemorrhagic shock in pigs. Methods: Animals received ketamine and midazolam as pre-anesthetic medications. Anesthesia was induced with propofol, and tracheal intubation was performed with the animals on spontaneous ventilation. After intubation neuromuscular blockade was performed. Animals were maintained in controlled mechanical ventilation and normocapnia. Anesthesia was maintained with propofol and fentanyl as needed. Saline was infused during the entire preparation period. Monitoring: Cardioscope, pulse oximeter, invasive blood pressure, volumetric catheter in the pulmonary artery, and urine output by cystostomy were used. Experimental model: after the initial recording of hemodynamic, metabolic, and coagulation variables, right subcostal incision and left lobe liver biopsy were performed. Anesthetic infusion was reduced while the infusion of saline was interrupted. An incision 12 cm long 2 cm deep was performed in the right liver lobe followed by digital divulsion of the wound. During the hemorrhagic phase, an aspiration probe was placed close to the wound and the volume of aspirated blood was recorded. When mean arterial pressure reached 40 mmHg and bleeding was above 700 mL the intervention phase was initiated according to the type of study. Conclusion: The development of experimental models to reduce high mortality and costs related to trauma is important.article 3 Citação(ões) na Scopus Evaluation of Cytokine Levels and Pulmonary Function in Patients Undergoing Coronary Artery Bypass Graft(2011) MACHADO, Luciano Brandao; NEGRI, Elnara Marcia; BONAFE, Wanderley Wesley; SANTOS, Luciana Moraes; MALBOUISSON, Luis Marcelo Sa; CARMONA, Maria Jose CarvalhoThe Summary: Machado LB, Negri EM, Bonafe WW, Santos LM, Malbouisson LMS, Carmona MJC - Evaluation of Cytokine Levels and Pulmonary Function in Patients Undergoing Coronary Artery Bypass Grafts. Background and objectives: Systemic inflammatory response syndrome is commonly observed in coronary artery bypass grafts (CABG) with cardiopulmonary bypass (CB). The objective of this study was to evaluate the systemic and pulmonary levels of cytokines and their correlation with lung function in patients undergoing myocardial revascularization (MR) with CB. Methods: This study was approved by the Institutional Ethics Committee, and 13 patients undergoing MR with CB were evaluated. After anesthetic induction and at the end of CB, plasma and bronchoalveolar lavage levels of IL-1 beta, IL-6, IL-8, IL-10, and TNF-alpha were determined. The duration of CB and surgery, PaO(2)/FiO(2) ratio, alveolar-arterial oxygen gradient (A-a gradient), shunt, and lung compliance were evaluated. Results were submitted to analysis of variance for repeated measurements ((star)p < 0.05) and Spearman's correlation coefficient. Results: We observed increased levels of cytokines in plasma and bronchoalveolar lavage after CB and a direct relationship between the increase in IL-beta and decrease in lung compliance (p = 0.0439), as well as the inverse relationship between the increase in IL-10 and a decrease in compliance (p = 0.0325). The increase in IL-6 was directly related to the duration of CB (p = 0.012), while the increase in IL-8 was directly related to the duration of surgery (p < 0.0001). Levels of interleukin-1 beta, IL-8, and TNF-alpha in bronchoalveolar lavage were higher than in plasma. Conclusions: There is an increase in cytokine levels in plasma and bronchoalveolar lavage after CB, as well as a correlation between increased cytokine levels and CB duration and surgery and changes in lung compliance.article 7 Citação(ões) na Scopus Development and Validation of an HPLC/MS/MS Method for the Determination of Sufentanil and Morphine in Human Plasma(2011) MANFIO, Joselia Larger; SANTOS, Veronica Jorge; LANCHOTE, Vera Lucia; SANTOS, Luciana M.; CARMONA, Maria Jose C.; AULER JR., Jose Otavio; BRUM JUNIOR, Liberato; DONADUZZI, Carmen Maria; SANTOS, Silvia R. C. J.A sensitive and fast HPLC/MS/MS method for measurement of sufentanil and morphine in plasma was developed and validated. A single liquid liquid extraction in alkaline medium was used for the cleanup of plasma, and fentanyl was added as an internal standard (IS). The analyses were carried out using a C(18) column and the mobile phase acetonitrile-5 mM ammonium acetate + 0.25% formic acid (70 + 30, v/v). The triple-quadrupole mass spectrometer equipped with an electrospray source in positive mode was set up in the selective reaction monitoring mode to detect precursor -> product ion transition 387.0 > 238.0, 285.7 > 165.1, and 337.0 > 188.0 for sufentanil, morphine, and IS, respectively. The method was linear in the 0.05 (LOQ) - 500 ng/mL range for sufentanil and 10 (LOQ) - 1000 ng/mL range for morphine. Good selectivity, linearity, precision, accuracy, and robustness were obtained for the HPLC/MS/MS method. The proposed method was successfully applied for the determination of sufentanil and morphine in patients undergoing cardiac surgery.article 0 Citação(ões) na Scopus Hemodynamic Changes during Myocardial Revascularization without Extracorporeal Circulation(2011) KIM, Silvia Minhye; MALBOUISSON, Luiz Marcelo Sa; AULER JR., Jose Otavio Costa; CARMONA, Maria Jose CarvalhoBackground and objectives: Cardiac positioning and stabilization during myocardial revascularization without extracorporeal circulation (ECC) may cause hemodynamic changes dependent to the surgical site. The objective of this study was to evaluate these changes during distal coronary anastomosis. Methods: Twenty adult patients undergoing myocardial revascularization without ECC were monitored by pulmonary artery catheter and transesophageal Echo Doppler. Hemodynamic data were collected at the following times before removing the stabilizer wall: (1) after volume adjustments, (2) at the beginning of distal anastomosis, and (3) after 5 minutes. Treated coronary arteries were grouped according to their location in the lateral, anterior, or posterior wall. Two-way ANOVA with repetition and Newman-Keuls post-test were used in the analysis. A p value < 0.05 was considered statically significant. Results: During myocardial revascularization without ECC, pulmonary artery wedge pressure showed elevation from 17.7 +/- 6.1 to 19.2 +/- 6.5 (p < 0.001) and 19.4 +/- 5.9 mmHg (p < 0.001), while the central venous pressure went from 13.9 +/- 5.4 to 14.9 +/- 5.9 mmHg (p = 0.007) and 15.1 +/- 6.0 mmHg (p = 0.006). Intermittent cardiac output was reduced from 4.70 +/- 1.43 to 4.23 +/- 1.22 (p < 0.001) and 4.26 +/- 1.25 L.min(-1) (p < 0.001). According to transesophageal Doppler, a significant group-time interaction was observed in cardiac output, which was reduced in the lateral group from 4.08 +/- 1.99 to 2.84 +/- 1.82 (p = 0.02) and 2.86 +/- 1.73 L.min(-1) (p = 0.02), and aortic blood flow, which went from 2.85 +/- 1.39 to 1.99 +/- 1.26 (p = 0.02) and 2.00 +/- 1.21 L.min(-1) (p = 0.02). Other hemodynamic changes were not observed during anastomoses. Conclusions: A significant hemodynamic deterioration was observed during myocardial revascularization without ECC. Transesophageal Doppler detected a decrease in cardiac output only in the lateral group.article 16 Citação(ões) na Scopus Computed tomography assessment of lung structure in patients undergoing cardiac surgery with cardiopulmonary bypass(2011) RODRIGUES, R. R.; SAWADA, A. Y.; ROUBY, J. -J.; FUKUDA, M. J.; NEVES, F. H.; CARMONA, M. J.; PELOSI, P.; AULER, J. O.; MALBOUISSON, L. M. S.Hypoxemia is a frequent complication after coronary artery bypass graft (CABG) with cardiopulmonary bypass (CPB), usually attributed to atelectasis. Using computed tomography (CT), we investigated postoperative pulmonary alterations and their impact on blood oxygenation. Eighteen non-hypoxemic patients (15 men and 3 women) with normal cardiac function scheduled for CABG under CPB were studied. Hemodynamic measurements and blood samples were obtained before surgery, after intubation, after CPB, at admission to the intensive care unit, and 12, 24, and 48 h after surgery. Pre- and postoperative volumetric thoracic CT scans were acquired under apnea conditions after a spontaneous expiration. Data were analyzed by the paired Student t-test and one-way repeated measures analysis of variance. Mean age was 63 +/- 9 years. The PaO(2)/FiO(2) ratio was significantly reduced after anesthesia induction, reaching its nadir after CPB and partially improving 12 h after surgery. Compared to preoperative CT, there was a 31% postoperative reduction in pulmonary gas volume (P < 0.001) while tissue volume increased by 19% (P < 0.001). Non-aerated lung increased by 253 +/- 97 g (P < 0.001), from 3 to 27%, after surgery and poorly aerated lung by 72 +/- 68 g (P < 0.001), from 24 to 27%, while normally aerated lung was reduced by 147 +/- 119 g (P < 0.001), from 72 to 46%. No correlations (Pearson) were observed between PaO(2)/FiO(2) ratio or shunt fraction at 24 h postoperatively and postoperative lung alterations. The data show that lung structure is profoundly modified after CABG with CPB. Taken together, multiple changes occurring in the lungs contribute to postoperative hypoxemia rather than atelectasis alone.article 1 Citação(ões) na Scopus Smart Alerts: Development of Software to Optimize Data Monitoring(2011) DHERTE, Patrick Marcel; NEGRAO, Mariana Pires Gentil; MORI NETO, Silvio; HOLZHACKER, Rafael; SHIMADA, Vanessa; TABERNER, Paula; CARMONA, Maria Jose CarvalhoDherte PM, Negrao MPG, Mori Neto S, Holzhacker R, Shimada V, Taberner P, Carmona MJC - Smart Alerts: Development of a Software to Optimize Data Monitoring. Background and objectives: Monitoring is useful for vital follow-ups and prevention, diagnosis, and treatment of several events in anesthesia. Although alarms can be useful in monitoring they can cause dangerous user's desensitization. The objective of this study was to describe the development of specific software to integrate intraoperative monitoring parameters generating ""smart alerts"" that can help decision making, besides indicating possible diagnosis and treatment. Methods: A system that allowed flexibility in the definition of alerts, combining individual alarms of the parameters monitored to generate a more elaborated alert system was designed. After investigating a set of smart alerts, considered relevant in the surgical environment, a prototype was designed and evaluated, and additional suggestions were implemented in the final product. To verify the occurrence of smart alerts, the system underwent testing with data previously obtained during intraoperative monitoring of 64 patients. The system allows continuous analysis of monitored parameters, verifying the occurrence of smart alerts defined in the user interface. Results: With this system a potential 92% reduction in alarms was observed. We observed that in most situations that did not generate alerts individual alarms did not represent risk to the patient. Conclusions: Implementation of software can allow integration of the data monitored and generate information, such as possible diagnosis or interventions. An expressive potential reduction in the amount of alarms during surgery was observed. Information displayed by the system can be oftentimes more useful than analysis of isolated parameters.